Cochrane Db Syst Rev
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Cochrane Db Syst Rev · Apr 2019
Meta AnalysisHospital nurse-staffing models and patient- and staff-related outcomes.
Nurses comprise the largest component of the health workforce worldwide and numerous models of workforce allocation and profile have been implemented. These include changes in skill mix, grade mix or qualification mix, staff-allocation models, staffing levels, nursing shifts, or nurses' work patterns. This is the first update of our review published in 2011. ⋯ The findings of this review should be treated with caution due to the limited amount and quality of the published research that was included. We have most confidence in our finding that the introduction of advanced or specialist nurses may lead to little or no difference in one patient outcome (i.e. mortality) with greater uncertainty about other patient outcomes (i.e. readmissions, ED attendance, length of stay and pressure ulcer rates). The evidence is of insufficient certainty to draw conclusions about the effectiveness of other types of interventions, including new nurse-staffing models and introduction of nursing assistive personnel, on patient, staff and cost outcomes. Although it has been seven years since the original review was published, the certainty of the evidence about hospital nurse staffing still remains very low.
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Cochrane Db Syst Rev · Apr 2019
Meta AnalysisStrategies to improve adherence and continuation of shorter-term hormonal methods of contraception.
Worldwide, hormonal contraceptives are among the most popular reversible contraceptives. Despite high perfect-use effectiveness rates, typical-use effectiveness rates for shorter-term methods such as oral and injectable contraceptives are much lower. In large part, this disparity reflects difficulties in ongoing adherence to the contraceptive regimen and low continuation rates. Correct use of contraceptives to ensure effectiveness is vital to reducing unintended pregnancy. ⋯ Despite the importance of this topic, studies have not been published since the last review in 2013 (nine studies) with only one study added in 2019 that neither changed the results nor improved the certainty of evidence.Overall, the certainty of evidence for strategies to improve adherence and continuation of contraceptives is low. Intensive counseling and reminders (with or without educational information) may be associated with improved continuation of shorter-term hormonal contraceptive methods when compared with usual family planning care. However, this should be interpreted with caution due to the low certainty of the evidence. Included trials used a variety of shorter-term hormonal contraceptive methods which may account for the high heterogeneity. It is possible that the effectiveness of strategies for improving adherence and continuation are contingent on the contraceptive method targeted. There was limited reporting of objectively measurable outcomes (e.g. electronic monitoring device) among included studies. Future trials would benefit from standardized definitions and measurements of adherence, and consistent terminology for describing interventions and comparisons. Further research requires larger studies, follow-up of at least one year, and improved reporting of trial methodology.
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Cochrane Db Syst Rev · Apr 2019
ReviewWITHDRAWN: Flossing for the management of periodontal diseases and dental caries in adults.
Good oral hygiene is thought to be important for oral health. This review is to determine the effectiveness of flossing in addition to toothbrushing for preventing gum disease and dental caries in adults. ⋯ There is some evidence from twelve studies that flossing in addition to toothbrushing reduces gingivitis compared to toothbrushing alone. There is weak, very unreliable evidence from 10 studies that flossing plus toothbrushing may be associated with a small reduction in plaque at 1 and 3 months. No studies reported the effectiveness of flossing plus toothbrushing for preventing dental caries.
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Cochrane Db Syst Rev · Apr 2019
Types of materials for frontalis sling surgery for congenital ptosis.
Congenital ptosis is a drooping of one or both eyelids at birth, often due to poor development of the levator palpebrae superioris muscle. This can result in amblyopia, astigmatism, and ocular torticollis and therefore may necessitate surgical intervention in early childhood if visual development is compromised. Patients may have varied levels of levator function. Those with moderate to good function may elect to first attempt ptosis repair with external levator advancement or mullerectomy/Fasanella-Servat procedures. For those with poor function, those procedures are less likely to be effective, so they may undergo frontalis sling surgery, in which the tarsal plate is coupled to the frontalis muscle, so that movement of the brow and forehead result in movement of the eyelid. The optimal material to use in this surgery is unknown. ⋯ The three trials included in this review evaluated four materials for frontalis sling surgery. Assessment of these three studies does not allow us to identify the optimal material. Future randomized trials should be rigorously designed so as to identify the best treatment for this condition.
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Cochrane Db Syst Rev · Apr 2019
Interventions for preventing high altitude illness: Part 3. Miscellaneous and non-pharmacological interventions.
High altitude illness (HAI) is a term used to describe a group of mainly cerebral and pulmonary syndromes that can occur during travel to elevations above 2500 metres (˜ 8200 feet). Acute mountain sickness (AMS), high altitude cerebral oedema (HACE), and high altitude pulmonary oedema (HAPE) are reported as potential medical problems associated with high altitude ascent. In this, the third of a series of three reviews about preventive strategies for HAI, we assessed the effectiveness of miscellaneous and non-pharmacological interventions. ⋯ This Cochrane Review is the final in a series of three providing relevant information to clinicians, and other interested parties, on how to prevent high altitude illness. The assessment of non-pharmacological and miscellaneous interventions suggests that there is heterogeneous and even contradictory evidence related to the effectiveness of these prophylactic strategies. Safety of these interventions remains as an unclear issue due to lack of assessment. Overall, the evidence is limited due to its quality (low to very low), the relative paucity of that evidence and the number of studies pending classification for the three reviews belonging to this series (30 studies either awaiting classification or ongoing). Additional studies, especially those comparing with pharmacological alternatives (such as acetazolamide) are required, in order to establish or refute the strategies evaluated in this review.